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Finding the Fourth Proportional to 348,854, 523,359 and 127,238

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Solution

The fourth proportional to 348,854, 523,359 and 127,238 is: 190,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,854 : 523,359 = 127,238 : x
  2. Step 2: Convert to fraction form
    348,854/523,359 = 127,238/x
  3. Step 3: Cross multiply
    348,854x = 523,359 × 127,238
  4. Step 4: Simplify right side
    348,854x = 66,591,152,442
  5. Step 5: Solve for x
    x = 66,591,152,442/348,854
  6. Step 6: Final answer
    x = 190,885.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.